From 292fb39c9396cff0146ff44591994b9e318b1712 Mon Sep 17 00:00:00 2001
From: sushanta chakraborty <kumar.suresh761651@gmail.com>
Date: Tue, 27 Sep 2016 12:38:44 +0000
Subject: [PATCH] TextPic.cs was not working for href.

Unity-UI-Extensions helped me a lot thanks for creating it.

Today i was trying href tag provided with TextPic.cs, but unfortunately it was not working.

I figured out that, OnPopulateMesh() was creating hrefInfo.boxes but at the end when OnPopulateMesh() calls UpdateQuadImage(), hrefInfo.boxes.count was coming 0. This was little strange but i saw that GetOutputText() was re-creating m_HrefInfos array from scratch but it didn't include the code to add boxes, so this was the issue.

so what i did is, i commented this line m_HrefInfos.Clear(); in GetOutputText() and added few lines of code to check if m_HrefInfos elements exists than don't destroy it, just update it with new values.
This helped in resolving the issue. Now i was getting onClick event on href tag.

Thanks

--HG--
branch : sushanta1991/textpiccs-was-not-working-for-href-unit-1474979920532
---
 Scripts/Controls/TextPic.cs | 773 +++++++++++++++++++-----------------
 1 file changed, 404 insertions(+), 369 deletions(-)

diff --git a/Scripts/Controls/TextPic.cs b/Scripts/Controls/TextPic.cs
index f03cf3f..641b8a0 100644
--- a/Scripts/Controls/TextPic.cs
+++ b/Scripts/Controls/TextPic.cs
@@ -10,421 +10,456 @@ using UnityEngine.EventSystems;
 
 namespace UnityEngine.UI.Extensions
 {
-    // Image according to the label inside the name attribute to load, read from the Resources directory. The size of the image is controlled by the size property.
-    // Use: <quad name=NAME size=25 width=1 />
-    [AddComponentMenu("UI/Extensions/TextPic")]
-       
-    [ExecuteInEditMode] // Needed for culling images that are not used //
-    public class TextPic : Text, IPointerClickHandler, IPointerExitHandler, IPointerEnterHandler, ISelectHandler
-    {
-        /// <summary>
-        /// Image Pool
-        /// </summary>
-        private readonly List<Image> m_ImagesPool = new List<Image>();
-        private readonly List<GameObject> culled_ImagesPool = new List<GameObject>();
-        private bool clearImages = false;
+	// Image according to the label inside the name attribute to load, read from the Resources directory. The size of the image is controlled by the size property.
+	// Use: <quad name=NAME size=25 width=1 />
+	[AddComponentMenu("UI/Extensions/TextPic")]
 
-        /// <summary>
-        /// Vertex Index
-        /// </summary>
-        private readonly List<int> m_ImagesVertexIndex = new List<int>();
+	[ExecuteInEditMode] // Needed for culling images that are not used //
+	public class TextPic : Text, IPointerClickHandler, IPointerExitHandler, IPointerEnterHandler, ISelectHandler
+	{
+		/// <summary>
+		/// Image Pool
+		/// </summary>
+		private readonly List<Image> m_ImagesPool = new List<Image>();
+		private readonly List<GameObject> culled_ImagesPool = new List<GameObject>();
+		private bool clearImages = false;
 
-        /// <summary>
-        /// Regular expression to replace 
-        /// </summary>
-        private static readonly Regex s_Regex =
-            new Regex(@"<quad name=(.+?) size=(\d*\.?\d+%?) width=(\d*\.?\d+%?) />", RegexOptions.Singleline);
+		/// <summary>
+		/// Vertex Index
+		/// </summary>
+		private readonly List<int> m_ImagesVertexIndex = new List<int>();
 
-        private string fixedString;
+		/// <summary>
+		/// Regular expression to replace 
+		/// </summary>
+		private static readonly Regex s_Regex =
+			new Regex(@"<quad name=(.+?) size=(\d*\.?\d+%?) width=(\d*\.?\d+%?) />", RegexOptions.Singleline);
 
-        public override void SetVerticesDirty()
-        {
-            base.SetVerticesDirty();
-            UpdateQuadImage();
-        }
+		private string fixedString;
 
-#if UNITY_EDITOR
-        protected override void OnValidate()
-        {
-            base.OnValidate();
-            UpdateQuadImage();
-        }
-#endif
+		public override void SetVerticesDirty()
+		{
+			base.SetVerticesDirty();
+			UpdateQuadImage();
+		}
 
-        /// <summary>
-        /// After parsing the final text
-        /// </summary>
-        private string m_OutputText;
+		#if UNITY_EDITOR
+		protected override void OnValidate()
+		{
+			base.OnValidate();
+			UpdateQuadImage();
+		}
+		#endif
 
-        [System.Serializable]
-        public struct IconName
-        {
-            public string name;
-            public Sprite sprite;
-        }
-        public IconName[] inspectorIconList;
+		/// <summary>
+		/// After parsing the final text
+		/// </summary>
+		private string m_OutputText;
 
-        private Dictionary<string, Sprite> iconList = new Dictionary<string, Sprite>();
+		[System.Serializable]
+		public struct IconName
+		{
+			public string name;
+			public Sprite sprite;
+		}
+		public IconName[] inspectorIconList;
 
-        public float ImageScalingFactor = 1;
+		private Dictionary<string, Sprite> iconList = new Dictionary<string, Sprite>();
 
-        // Write the name or hex value of the hyperlink color
-        public string hyperlinkColor = "blue";
+		public float ImageScalingFactor = 1;
 
-        // Offset image by x, y
-        [SerializeField]
-        public Vector2 imageOffset = Vector2.zero;
+		// Write the name or hex value of the hyperlink color
+		public string hyperlinkColor = "blue";
 
-        private Button button;
+		// Offset image by x, y
+		[SerializeField]
+		public Vector2 imageOffset = Vector2.zero;
 
-        //Commented out as private and not used.. Yet?
-        //private bool selected = false;
+		private Button button;
 
-        private List<Vector2> positions = new List<Vector2>();
+		//Commented out as private and not used.. Yet?
+		//private bool selected = false;
 
-        /**
+		private List<Vector2> positions = new List<Vector2>();
+
+		/**
         * Unity Inspector cant display Dictionary vars,
         * so we use this little hack to setup the iconList
         */
-        new void Start()
-        {
-            button = GetComponent<Button>();
-            if (inspectorIconList != null && inspectorIconList.Length > 0)
-            {
-                foreach (IconName icon in inspectorIconList)
-                {
-                    // Debug.Log(icon.sprite.name);
-                    iconList.Add(icon.name, icon.sprite);
-                }
-            }
-        }
+		new void Start()
+		{
+			button = GetComponent<Button>();
+			if (inspectorIconList != null && inspectorIconList.Length > 0)
+			{
+				foreach (IconName icon in inspectorIconList)
+				{
+					// Debug.Log(icon.sprite.name);
+					iconList.Add(icon.name, icon.sprite);
+				}
+			}
+		}
 
-        protected void UpdateQuadImage()
-        {
-#if UNITY_EDITOR
-            if (UnityEditor.PrefabUtility.GetPrefabType(this) == UnityEditor.PrefabType.Prefab)
-            {
-                return;
-            }
-#endif
-            m_OutputText = GetOutputText();
-            m_ImagesVertexIndex.Clear();
-            foreach (Match match in s_Regex.Matches(m_OutputText))
-            {
-                var picIndex = match.Index;
-                var endIndex = picIndex * 4 + 3;
-                m_ImagesVertexIndex.Add(endIndex);
+		protected void UpdateQuadImage()
+		{
+			#if UNITY_EDITOR
+			if (UnityEditor.PrefabUtility.GetPrefabType(this) == UnityEditor.PrefabType.Prefab)
+			{
+				return;
+			}
+			#endif
+			m_OutputText = GetOutputText();
+			m_ImagesVertexIndex.Clear();
+			foreach (Match match in s_Regex.Matches(m_OutputText))
+			{
+				var picIndex = match.Index;
+				var endIndex = picIndex * 4 + 3;
+				m_ImagesVertexIndex.Add(endIndex);
 
-                m_ImagesPool.RemoveAll(image => image == null);
-                if (m_ImagesPool.Count == 0)
-                {
-                    GetComponentsInChildren<Image>(m_ImagesPool);
-                }
-                if (m_ImagesVertexIndex.Count > m_ImagesPool.Count)
-                {
-                    var resources = new DefaultControls.Resources();
-                    var go = DefaultControls.CreateImage(resources);
-                    go.layer = gameObject.layer;
-                    var rt = go.transform as RectTransform;
-                    if (rt)
-                    {
-                        rt.SetParent(rectTransform);
-                        rt.localPosition = Vector3.zero;
-                        rt.localRotation = Quaternion.identity;
-                        rt.localScale = Vector3.one;
-                    }
-                    m_ImagesPool.Add(go.GetComponent<Image>());
-                }
+				m_ImagesPool.RemoveAll(image => image == null);
+				if (m_ImagesPool.Count == 0)
+				{
+					GetComponentsInChildren<Image>(m_ImagesPool);
+				}
+				if (m_ImagesVertexIndex.Count > m_ImagesPool.Count)
+				{
+					var resources = new DefaultControls.Resources();
+					var go = DefaultControls.CreateImage(resources);
+					go.layer = gameObject.layer;
+					var rt = go.transform as RectTransform;
+					if (rt)
+					{
+						rt.SetParent(rectTransform);
+						rt.localPosition = Vector3.zero;
+						rt.localRotation = Quaternion.identity;
+						rt.localScale = Vector3.one;
+					}
+					m_ImagesPool.Add(go.GetComponent<Image>());
+				}
 
-                var spriteName = match.Groups[1].Value;
-                //var size = float.Parse(match.Groups[2].Value);
-                var img = m_ImagesPool[m_ImagesVertexIndex.Count - 1];
-                if (img.sprite == null || img.sprite.name != spriteName)
-                {
-                    // img.sprite = Resources.Load<Sprite>(spriteName);
-                    if (inspectorIconList != null && inspectorIconList.Length > 0)
-                    {
-                        foreach (IconName icon in inspectorIconList)
-                        {
-                            if (icon.name == spriteName)
-                            {
-                                img.sprite = icon.sprite;
-                                break;
-                            }
-                        }
-                    }
-                }
-                img.rectTransform.sizeDelta = new Vector2(fontSize * ImageScalingFactor, fontSize * ImageScalingFactor);
-                img.enabled = true;
-                if (positions.Count == m_ImagesPool.Count)
-                {
-                    img.rectTransform.anchoredPosition = positions[m_ImagesVertexIndex.Count - 1];
-                }
-            }
+				var spriteName = match.Groups[1].Value;
+				//var size = float.Parse(match.Groups[2].Value);
+				var img = m_ImagesPool[m_ImagesVertexIndex.Count - 1];
+				if (img.sprite == null || img.sprite.name != spriteName)
+				{
+					// img.sprite = Resources.Load<Sprite>(spriteName);
+					if (inspectorIconList != null && inspectorIconList.Length > 0)
+					{
+						foreach (IconName icon in inspectorIconList)
+						{
+							if (icon.name == spriteName)
+							{
+								img.sprite = icon.sprite;
+								break;
+							}
+						}
+					}
+				}
+				img.rectTransform.sizeDelta = new Vector2(fontSize * ImageScalingFactor, fontSize * ImageScalingFactor);
+				img.enabled = true;
+				if (positions.Count == m_ImagesPool.Count)
+				{
+					img.rectTransform.anchoredPosition = positions[m_ImagesVertexIndex.Count - 1];
+				}
+			}
 
-            for (var i = m_ImagesVertexIndex.Count; i < m_ImagesPool.Count; i++)
-            {
-                if (m_ImagesPool[i])
-                {
-                    /* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
-                    // m_ImagesPool[i].enabled = false;
-                    m_ImagesPool[i].gameObject.SetActive(false);
-                    m_ImagesPool[i].gameObject.hideFlags = HideFlags.HideAndDontSave;
-                    culled_ImagesPool.Add(m_ImagesPool[i].gameObject);
-                    m_ImagesPool.Remove(m_ImagesPool[i]);
-                }
-            }
-            if (culled_ImagesPool.Count > 1) {
-                clearImages = true;
-            }
-        }
+			for (var i = m_ImagesVertexIndex.Count; i < m_ImagesPool.Count; i++)
+			{
+				if (m_ImagesPool[i])
+				{
+					/* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
+					// m_ImagesPool[i].enabled = false;
+					m_ImagesPool[i].gameObject.SetActive(false);
+					m_ImagesPool[i].gameObject.hideFlags = HideFlags.HideAndDontSave;
+					culled_ImagesPool.Add(m_ImagesPool[i].gameObject);
+					m_ImagesPool.Remove(m_ImagesPool[i]);
+				}
+			}
+			if (culled_ImagesPool.Count > 1) {
+				clearImages = true;
+			}
+		}
 
-        protected override void OnPopulateMesh(VertexHelper toFill)
-        {
-            var orignText = m_Text;
-            m_Text = m_OutputText;
-            base.OnPopulateMesh(toFill);
-            m_Text = orignText;
-            positions.Clear();
+		protected override void OnPopulateMesh(VertexHelper toFill)
+		{
+			var orignText = m_Text;
+			m_Text = m_OutputText;
+			base.OnPopulateMesh(toFill);
+			m_Text = orignText;
+			positions.Clear();
 
-            UIVertex vert = new UIVertex();
-            for (var i = 0; i < m_ImagesVertexIndex.Count; i++)
-            {
-                var endIndex = m_ImagesVertexIndex[i];
-                var rt = m_ImagesPool[i].rectTransform;
-                var size = rt.sizeDelta;
-                if (endIndex < toFill.currentVertCount)
-                {
-                    toFill.PopulateUIVertex(ref vert, endIndex);
-                    positions.Add(new Vector2((vert.position.x + size.x / 2), (vert.position.y + size.y / 2)) + imageOffset);
+			UIVertex vert = new UIVertex();
+			for (var i = 0; i < m_ImagesVertexIndex.Count; i++)
+			{
+				var endIndex = m_ImagesVertexIndex[i];
+				var rt = m_ImagesPool[i].rectTransform;
+				var size = rt.sizeDelta;
+				if (endIndex < toFill.currentVertCount)
+				{
+					toFill.PopulateUIVertex(ref vert, endIndex);
+					positions.Add(new Vector2((vert.position.x + size.x / 2), (vert.position.y + size.y / 2)) + imageOffset);
 
-                    // Erase the lower left corner of the black specks
-                    toFill.PopulateUIVertex(ref vert, endIndex - 3);
-                    var pos = vert.position;
-                    for (int j = endIndex, m = endIndex - 3; j > m; j--)
-                    {
-                        toFill.PopulateUIVertex(ref vert, endIndex);
-                        vert.position = pos;
-                        toFill.SetUIVertex(vert, j);
-                    }
-                }
-            }
+					// Erase the lower left corner of the black specks
+					toFill.PopulateUIVertex(ref vert, endIndex - 3);
+					var pos = vert.position;
+					for (int j = endIndex, m = endIndex - 3; j > m; j--)
+					{
+						toFill.PopulateUIVertex(ref vert, endIndex);
+						vert.position = pos;
+						toFill.SetUIVertex(vert, j);
+					}
+				}
+			}
 
-            if (m_ImagesVertexIndex.Count != 0)
-            {
-                m_ImagesVertexIndex.Clear();
-            }
+			if (m_ImagesVertexIndex.Count != 0)
+			{
+				m_ImagesVertexIndex.Clear();
+			}
 
-            // Hyperlinks surround processing box
-            foreach (var hrefInfo in m_HrefInfos)
-            {
-                hrefInfo.boxes.Clear();
-                if (hrefInfo.startIndex >= toFill.currentVertCount)
-                {
-                    continue;
-                }
+			// Hyperlinks surround processing box
+			foreach (var hrefInfo in m_HrefInfos)
+			{
+				hrefInfo.boxes.Clear();
+				if (hrefInfo.startIndex >= toFill.currentVertCount)
+				{
+					continue;
+				}
 
-                // Hyperlink inside the text is added to surround the vertex index coordinate frame
-                toFill.PopulateUIVertex(ref vert, hrefInfo.startIndex);
-                var pos = vert.position;
-                var bounds = new Bounds(pos, Vector3.zero);
-                for (int i = hrefInfo.startIndex, m = hrefInfo.endIndex; i < m; i++)
-                {
-                    if (i >= toFill.currentVertCount)
-                    {
-                        break;
-                    }
+				// Hyperlink inside the text is added to surround the vertex index coordinate frame
+				toFill.PopulateUIVertex(ref vert, hrefInfo.startIndex);
+				var pos = vert.position;
+				var bounds = new Bounds(pos, Vector3.zero);
+				for (int i = hrefInfo.startIndex, m = hrefInfo.endIndex; i < m; i++)
+				{
+					if (i >= toFill.currentVertCount)
+					{
+						break;
+					}
 
-                    toFill.PopulateUIVertex(ref vert, i);
-                    pos = vert.position;
-                    if (pos.x < bounds.min.x) // Wrap re-add surround frame
-                    {
-                        hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
-                        bounds = new Bounds(pos, Vector3.zero);
-                    }
-                    else
-                    {
-                        bounds.Encapsulate(pos); // Extended enclosed box
-                    }
-                }
-                hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
-            }
-            UpdateQuadImage();
-        }
+					toFill.PopulateUIVertex(ref vert, i);
+					pos = vert.position;
+					if (pos.x < bounds.min.x) // Wrap re-add surround frame
+					{
+						hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
+						bounds = new Bounds(pos, Vector3.zero);
+					}
+					else
+					{
+						bounds.Encapsulate(pos); // Extended enclosed box
+					}
+				}
+				hrefInfo.boxes.Add(new Rect(bounds.min, bounds.size));
 
-        /// <summary>
-        /// Hyperlink List
-        /// </summary>
-        private readonly List<HrefInfo> m_HrefInfos = new List<HrefInfo>();
+			}
 
-        /// <summary>
-        /// Text Builder
-        /// </summary>
-        private static readonly StringBuilder s_TextBuilder = new StringBuilder();
 
-        /// <summary>
-        /// Hyperlink Regular Expression
-        /// </summary>
-        private static readonly Regex s_HrefRegex =
-            new Regex(@"<a href=([^>\n\s]+)>(.*?)(</a>)", RegexOptions.Singleline);
+			UpdateQuadImage();
 
-        [Serializable]
-        public class HrefClickEvent : UnityEvent<string> { }
+		}
 
-        [SerializeField]
-        private HrefClickEvent m_OnHrefClick = new HrefClickEvent();
+		/// <summary>
+		/// Hyperlink List
+		/// </summary>
+		private readonly List<HrefInfo> m_HrefInfos = new List<HrefInfo>();
 
-        /// <summary>
-        /// Hyperlink Click Event
-        /// </summary>
-        public HrefClickEvent onHrefClick
-        {
-            get { return m_OnHrefClick; }
-            set { m_OnHrefClick = value; }
-        }
+		/// <summary>
+		/// Text Builder
+		/// </summary>
+		private static readonly StringBuilder s_TextBuilder = new StringBuilder();
 
-        /// <summary>
-        /// Finally, the output text hyperlinks get parsed
-        /// </summary>
-        /// <returns></returns>
-        protected string GetOutputText()
-        {
-            s_TextBuilder.Length = 0;
-            m_HrefInfos.Clear();
-            var indexText = 0;
-            fixedString = this.text;
-            if (inspectorIconList != null && inspectorIconList.Length > 0)
-            {
-                foreach (IconName icon in inspectorIconList)
-                {
-                    if (icon.name != null && icon.name != "")
-                    {
-                        fixedString = fixedString.Replace(icon.name, "<quad name=" + icon.name + " size=" + fontSize + " width=1 />");
-                    }
-                }
-            }
-            foreach (Match match in s_HrefRegex.Matches(fixedString))
-            {
-                s_TextBuilder.Append(fixedString.Substring(indexText, match.Index - indexText));
-                s_TextBuilder.Append("<color=" + hyperlinkColor + ">");  // Hyperlink color
+		/// <summary>
+		/// Hyperlink Regular Expression
+		/// </summary>
+		private static readonly Regex s_HrefRegex =
+			new Regex(@"<a href=([^>\n\s]+)>(.*?)(</a>)", RegexOptions.Singleline);
 
-                var group = match.Groups[1];
-                var hrefInfo = new HrefInfo
-                {
-                    startIndex = s_TextBuilder.Length * 4, // Hyperlinks in text starting vertex indices
-                    endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3,
-                    name = group.Value
-                };
-                m_HrefInfos.Add(hrefInfo);
+		[Serializable]
+		public class HrefClickEvent : UnityEvent<string> { }
 
-                s_TextBuilder.Append(match.Groups[2].Value);
-                s_TextBuilder.Append("</color>");
-                indexText = match.Index + match.Length;
-            }
-            s_TextBuilder.Append(fixedString.Substring(indexText, fixedString.Length - indexText));
+		[SerializeField]
+		private HrefClickEvent m_OnHrefClick = new HrefClickEvent();
 
-            return s_TextBuilder.ToString();
-        }
+		/// <summary>
+		/// Hyperlink Click Event
+		/// </summary>
+		public HrefClickEvent onHrefClick
+		{
+			get { return m_OnHrefClick; }
+			set { m_OnHrefClick = value; }
+		}
 
-        /// <summary>
-        /// Click event is detected whether to click a hyperlink text
-        /// </summary>
-        /// <param name="eventData"></param>
-        public void OnPointerClick(PointerEventData eventData)
-        {
-            Vector2 lp;
-            RectTransformUtility.ScreenPointToLocalPointInRectangle(
-                rectTransform, eventData.position, eventData.pressEventCamera, out lp);
+		/// <summary>
+		/// Finally, the output text hyperlinks get parsed
+		/// </summary>
+		/// <returns></returns>
+		protected string GetOutputText()
+		{
+			s_TextBuilder.Length = 0;
+			// This also clears the list of boxes in m_HrefInfos created by OnPopulateMesh function, without boxes href wont work, so i commented this
+			//m_HrefInfos.Clear();
+			var indexText = 0;
+			fixedString = this.text;
+			if (inspectorIconList != null && inspectorIconList.Length > 0)
+			{
+				foreach (IconName icon in inspectorIconList)
+				{
+					if (icon.name != null && icon.name != "")
+					{
+						fixedString = fixedString.Replace(icon.name, "<quad name=" + icon.name + " size=" + fontSize + " width=1 />");
+					}
+				}
+			}
+			foreach (Match match in s_HrefRegex.Matches(fixedString))
+			{
+				s_TextBuilder.Append(fixedString.Substring(indexText, match.Index - indexText));
+				s_TextBuilder.Append("<color=" + hyperlinkColor + ">");  // Hyperlink color
 
-            foreach (var hrefInfo in m_HrefInfos)
-            {
-                var boxes = hrefInfo.boxes;
-                for (var i = 0; i < boxes.Count; ++i)
-                {
-                    if (boxes[i].Contains(lp))
-                    {
-                        m_OnHrefClick.Invoke(hrefInfo.name);
-                        return;
-                    }
-                }
-            }
-        }
+				var group = match.Groups[1];
+				int foundAtIndex = -1;
 
-        public void OnPointerEnter(PointerEventData eventData)
-        {
-            //do your stuff when highlighted
-            //selected = true;
-            if (m_ImagesPool.Count >= 1)
-            {
-                foreach (Image img in m_ImagesPool)
-                {
-                    if (button != null && button.isActiveAndEnabled)
-                    {
-                        img.color = button.colors.highlightedColor;
-                    }
-                }
-            }
-        }
+				if(HrefInfosDoesExists(group.Value,out foundAtIndex)) {
+					m_HrefInfos[foundAtIndex].startIndex = s_TextBuilder.Length * 4; // Hyperlinks in text starting vertex indices;
+					m_HrefInfos[foundAtIndex].endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3; 
 
-        public void OnPointerExit(PointerEventData eventData)
-        {
+				} else {
+					var hrefInfo = new HrefInfo
+					{
+						startIndex = s_TextBuilder.Length * 4, // Hyperlinks in text starting vertex indices
+						endIndex = (s_TextBuilder.Length + match.Groups[2].Length - 1) * 4 + 3,
+						name = group.Value
+					};
+					m_HrefInfos.Add(hrefInfo);
+				}
 
-            //do your stuff when highlighted
-            //selected = false;
-            if (m_ImagesPool.Count >= 1)
-            {
-                foreach (Image img in m_ImagesPool)
-                {
-                    if (button != null && button.isActiveAndEnabled)
-                    {
-                        img.color = button.colors.normalColor;
-                    }
-                    else
-                    {
-                        img.color = color;
-                    }
-                }
-            }
-        }
-        public void OnSelect(BaseEventData eventData)
-        {
-            //do your stuff when selected
-            //selected = true;
-            if (m_ImagesPool.Count >= 1)
-            {
-                foreach (Image img in m_ImagesPool)
-                {
-                    if (button != null && button.isActiveAndEnabled)
-                    {
-                        img.color = button.colors.highlightedColor;
-                    }
-                }
-            }
-        }
+				s_TextBuilder.Append(match.Groups[2].Value);
+				s_TextBuilder.Append("</color>");
+				indexText = match.Index + match.Length;
+			}
+			s_TextBuilder.Append(fixedString.Substring(indexText, fixedString.Length - indexText));
 
-        /// <summary>
-        /// Hyperlinks Info
-        /// </summary>
-        private class HrefInfo
-        {
-            public int startIndex;
+			return s_TextBuilder.ToString();
+		}
 
-            public int endIndex;
+		/// <summary>
+		/// If Href exists than just modify its startIndex and endIndex, dont clear the whole array of m_HrefInfos which also clears the previously created boxes for href.
+		/// </summary>
+		/// <returns><c>true</c>, if hrefName already exists in the list of m_HrefInfos, <c>false</c> otherwise.</returns>
+		/// <param name="hrefName">Href name.</param>
+		/// <param name="indexAt">Index at.</param>
+		private bool HrefInfosDoesExists(string hrefName, out int indexAt) {
+			bool flag = false;
+			int foundAtIndex = -1;
+			foreach(var hrefInfoTest in m_HrefInfos){
+				if(hrefInfoTest.name == hrefName) {
+					foundAtIndex++;
+					flag = true;
+					break;
+				} else {
+					foundAtIndex++;
+				}
+			}
+			indexAt = foundAtIndex;
+			return flag;
+		}
 
-            public string name;
+		/// <summary>
+		/// Click event is detected whether to click a hyperlink text
+		/// </summary>
+		/// <param name="eventData"></param>
+		public void OnPointerClick(PointerEventData eventData)
+		{
+			Vector2 lp;
+			RectTransformUtility.ScreenPointToLocalPointInRectangle(
+				rectTransform, eventData.position, eventData.pressEventCamera, out lp);
 
-            public readonly List<Rect> boxes = new List<Rect>();
-        }
-    
-        /* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
-        void Update() {
-            if (clearImages) {
-                for (int i = 0; i < culled_ImagesPool.Count; i++){
-                    DestroyImmediate(culled_ImagesPool[i]);
-                }
-                culled_ImagesPool.Clear();
-                clearImages = false;
-            }
-        }
-    }
+			foreach (var hrefInfo in m_HrefInfos)
+			{
+				var boxes = hrefInfo.boxes;
+				for (var i = 0; i < boxes.Count; ++i)
+				{
+					if (boxes[i].Contains(lp))
+					{
+						m_OnHrefClick.Invoke(hrefInfo.name);
+						return;
+					}
+				}
+			}
+		}
+
+		public void OnPointerEnter(PointerEventData eventData)
+		{
+			//do your stuff when highlighted
+			//selected = true;
+			if (m_ImagesPool.Count >= 1)
+			{
+				foreach (Image img in m_ImagesPool)
+				{
+					if (button != null && button.isActiveAndEnabled)
+					{
+						img.color = button.colors.highlightedColor;
+					}
+				}
+			}
+		}
+
+		public void OnPointerExit(PointerEventData eventData)
+		{
+
+			//do your stuff when highlighted
+			//selected = false;
+			if (m_ImagesPool.Count >= 1)
+			{
+				foreach (Image img in m_ImagesPool)
+				{
+					if (button != null && button.isActiveAndEnabled)
+					{
+						img.color = button.colors.normalColor;
+					}
+					else
+					{
+						img.color = color;
+					}
+				}
+			}
+		}
+		public void OnSelect(BaseEventData eventData)
+		{
+			//do your stuff when selected
+			//selected = true;
+			if (m_ImagesPool.Count >= 1)
+			{
+				foreach (Image img in m_ImagesPool)
+				{
+					if (button != null && button.isActiveAndEnabled)
+					{
+						img.color = button.colors.highlightedColor;
+					}
+				}
+			}
+		}
+
+		/// <summary>
+		/// Hyperlinks Info
+		/// </summary>
+		private class HrefInfo
+		{
+			public int startIndex;
+
+			public int endIndex;
+
+			public string name;
+
+			public readonly List<Rect> boxes = new List<Rect>();
+		}
+
+		/* TEMPORARY FIX REMOVE IMAGES FROM POOL DELETE LATER SINCE CANNOT DESTROY */
+		void Update() {
+			if (clearImages) {
+				for (int i = 0; i < culled_ImagesPool.Count; i++){
+					DestroyImmediate(culled_ImagesPool[i]);
+				}
+				culled_ImagesPool.Clear();
+				clearImages = false;
+			}
+		}
+	}
 }
\ No newline at end of file